CA2339381C - Small arm system with exchangeable barrel - Google Patents
Small arm system with exchangeable barrel Download PDFInfo
- Publication number
- CA2339381C CA2339381C CA002339381A CA2339381A CA2339381C CA 2339381 C CA2339381 C CA 2339381C CA 002339381 A CA002339381 A CA 002339381A CA 2339381 A CA2339381 A CA 2339381A CA 2339381 C CA2339381 C CA 2339381C
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- Prior art keywords
- cartridge
- barrel
- shoulder
- cartridge chamber
- chamber
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
- F41A11/02—Modular concepts, e.g. weapon-family concepts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Furnace Charging Or Discharging (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Dental Preparations (AREA)
- Manipulator (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Closures For Containers (AREA)
Abstract
The invention relates to a small arm system with an exchangeable barrel. The aim of the invention is to provide a small-caliber small arm for high-speed bullets (10) with an effective silencer. To this end, the arm is provided wi th an exchangeable barrel that is designed for a bullet (10') whose caliber is substantially larger than the bullet (10) for the small caliber but which ha s the same length and the same base dimensions. The bullet (10') for the exchangeable barrel is designed in such a manner that the projectile (7') ha s a muzzle velocity in the ultrasonic range while being sufficiently heavy to supply a sufficient muzzle energy. The different bullets (10, 10') for the original barrel and for the exchangeable barrel are designed differently so that a confusion of the bullets (10, 10') is impossible since the respective bullets (10, 10') cannot be completely inserted into the bullet chamber (20, 20') to which they do not pertain.
Description
A handgun system with an exchangeable barrel Description The invention concerns a handheld firearm system with a handgun for ftrin g bottle shaped cartridges, in which the handgun possesses an exchangeable original barrel with a cartridge chamber and a breech plate, which latter breech plate, in order to detonate the cartridges, is located at specified maximum distance from the end of the cartridge chamber (generic concept of Claim 1 ).
In these documents, when reference is given to position, the assumption is of a normal model of a handgun in a horizontal position, and "forward" is in the direction of shooting.
If a silenced weapon is to truly Function without sound, then, the expansion noise of the gases which drive the bullet plus the sound of the cartridge detonation must be suppressed. A
third sound produced by the fired bullet will last as long as the bullet travels at supersonic velocity. For the suppression of the sound of the bullet, it is possible to choose cartridges wherein, at the very beginning, the velocity of the bullets is subsonic. This condition is true for many pistol cartridges. As an alternate, one can excise gas relief passages in the barrel, which divert a portion of the driving gases into a silencer, and in this way the said passages take care that the velocity of the bullet in flight does not exceed the supersonic level. This diversion of gas is only a reasonable measure, when the nominal muzzle velocity of the bullet does not overstep the supersonic border. Finally, it is also possible, to make use of special, somewhat experimentally made cartridges, the bullets of which do not attain supersonic velocities.
Since the 1960's the caliber of military weapons has become steadily smaller.
In the second world war, the caliber 6.5 mm (Italy, Japan, Sweden) was generally seen as being too small to be effective as a military bullet. The average caliber lay, at that time, between 7.5 to 8 mm.
Today, the modern NATO caliber is set at only 5.56 mm (.223 Remington). In the military thinking of the previous Soviet Union, the effort was made to reduce caliber still further., striving for something like 4.5 mm.
Concerning the cartridge .223, the bullet itself weighs some 3.5 g. In order to maintain a sufficient energy at muzzle, this will demand a very high departure velocity, which exceeds the supersonic level by three times. The resulting muzzle energy, in any case, is closely calculated and falling short of the calculated value is to be; avoided.
If one would redesign this .223 cartridge so that, with some reliability, its bullet would travel at a subsonic velocity, one would obtain a muzzle energy, which would run at only a tenth of its original muzzle energy. This would be a muzzle energy appropriate for a small bore weapon with weaker ammunition (subsonic munitions). This bullet would scarcely penetrate a notebook . A "bulletproof vest" could offer complete protective cover.
We have today, military command organizations, for whom the greatest possible repression of sounds emanating from firing is essential. To achieve such a goal, for the above reasons, no military weaponry can be employed, even when said weapons are equipped with silencers.
Namely, either the report of the 'ring is not silenced, or the effect of the shooting is insufficient.
Now, it is entirely possible to make use of a submachine gun with a silencer, when the said gun fires on a closed breech basis and not, as is usual, from an open breech basis. With such a submachine gun, precision shots can be executed. The applicant markets such submachine guns.
It would be, however, better to employ the conventional military rifle for the use of such a silencer, as this weapon is already commercially available and need not be specially obtained.
Further, the marksmen teams are familiar with the conventional weapon.
Thus the invention proposes to equip a conventional, military weapon with a silencer, in spite of the fact, from the above cited reasons, such a combination seems inappropriate.
To accomplish this goal, one can provide the handgun with an exchangeable barrel for a large caliber cartridge. The reason for this, is that the larger caliber indicates a cartridge with a greater bullet weight, and consequently a greater muzzle energy -- even in the subsonic velocity range.
However, in doing this, the earlier cited difficulties in military application are substituted for by new problems, namely the danger of erroneous cartridge switch. Here is an historic example:
In the first world war, the Mauler pistol, which already appeared on the market it 1896, was designed for the bottle cartridge 7.63 mm, but was converted to the 9 mm German Ordnance cartridge Parabellum. This conversion occurred only by use of another barrel, wherein however, the barrel for 7.63 mm and 9 mm were fully exchangeable. Other conversions and/or modifications were not necessary. Principally, a characteristic pistol stock became a recognition signal alerting that an exchange had been made.
In fact, it did come to inadvertent switches, since either of the cartridges could be loaded into either pistol. If the 9.3 mm pistol were loaded with 7.63 mm cartridges, firing was still possible, but with reduced muzzle energy, accompanied by an erratic trajectory and loading difficulties. In the reverse situation, the 9 mm bullet squeezed itself through the 7.63 bore, and widened this outwardly, so that it became unuseable. Possibly, the bolts which limited the recoil travel for the breeching had been thereby deformed.
Also, the earlier Mauler-cartridge 8 x 57 was modified several times, whereby, fundamentally, the cartridge with the smaller caliber (about 7 x 57) could be loaded into the bore intended for the larger caliber. In this case, the advantage was gained, that no direct damage to the weapon could be brought about. However, the accuracy of the gun, especially the sequential bull's-eye reliability was greatly reduced. If, for instance, the result of a commando raid depended on the results of a shot hitting its mark, then any inefficiency in the aim cannot be accepted. Particularly this is valid, when error can be attributed to a faulty loading of the weapon.
Based on these reasons, the invention would like to make available a handheld firearm system, which would be free of the above di fGculties.
In accord with the invention, this intention is achieved by means of the object of Claim I , as well as in that, the handgun system also exhibits the following features:
a) an exchangeable barrel is provided, which is designed for another, bottle shaped cartridge with an essentially greater caliber;
b) both cartridges have approximately the same length and same base measurements; and c.l) the bullet of the large caliber cartridge is so dimensioned, that, if any effort is made to place the large caliber cartridge in the cartridge chamber of the bore for the smaller caliber, the said bullet will seat itself in the area of the cartridge section corresponding to the neck of the smaller cartridge and thereby prevent a complete insertion of the cartridge into the cartridge chamber.
and/or c.2) the cartridge with the small caliber is so dimensioned, that any attempt to put the same into the cartridge chamber of the bore of the larger caliber, will result m its shoulder impinging against the shoulder of that section of the cartridge chamber corresponding to the larger caliber, or it will seat itself in front of this section, with the result that its complete insertion into the said cartridge chamber is prevented.
The shoulder of the large caliber cartridge is set back, in reference to the small caliber cartridge, or the large caliber cartridge exhibits at its shoulder a smaller diameter than does the small caliber cartridge, in other words, the large caliber cartridge is slimmer. The large caliber cartridge is preferably bottle shaped, but can also be slightly conical.
In each of these cases, the respective cartridge protrudes from the non-fit cartridge chamber so far to the rear, that it remains unlatched by the oncoming breech block, and for this reason, the cartridge will not fire, i.e. cannot be detonated.
Thus, only one barrel with, if required, a gas cylinder, silencer and munitions need be made available for the make-over of one handgun. These are parts, which, for little expense, can be purchased and kept available in the armory of a company.
DE 41 43 48G C2 has already disclosed a maneuver cartridge ban-el, into which a live cartridge simply cannot be inserted. This possibility is not explained in the patent text.
The maneuver cartridge can, however, in case of an exchange, be immediately loaded into the live ammunition barrel and also fired therefrom. This is contrary to the invention wherein a cartridge exchange is immediately recognizable and in no case can switched cartridges be fired.
Naturally, the weapon system of the invention is principally appropriate to handguns, in which the barrel is simple to exchange. However the invented system can still be applied, although the barrel exchange meets with more complexities, in cases where a number of other weapons are rebuilt for long continuous usage or are so equipped from the start for the large caliber cartridges.
In the large calibered cartridges, the shoulder, compared to that of the small caliber cartridge, is shortened to the rear, making the bullet essentially one diameter longer in the forward direction. The result is a very long, and conseduently very heavy bullet.
Basing considerations on the fact that the larger caliber is about 2 mm larger than is the smaller, the conclusion must be drawn that the bullet weight is almost exactly four times the weight of the smaller caliber bullet. If this bullet be brought just barely into the subsonic range, then there is surrendered some 35 to 40 % of the muzzle energy of the small caliber bullet. This matches the muzzle energy of a heavy revolver. The above mentioned "bulletproof vest" offers to a direct hit by this weapon, no kind of protection.
Preferred details may be inferred from Claim 2.
For small caliber cartridges of the above mentioned kind, there exist repeating military rifles. Among these are, for instance, the sniper weapons of the previous DDR.
Such a weapon could be equipped with a changeable original barrel as well as an exchange barrel for the large caliber cartridges and be further fitted with a silencer.
Preference is given, however, to a weapon system in accord with the invention, which includes a handgun designed with a gas pressure loader, and with which the bore is provided with a gas removal device (for instance, gas boring, cylinder for gas piston).
In accord with the invention, the exchange barrel possesses its own gas removal device, and, taking this removal device with it, can exchange with the existing barrel, with its gas removal device.
In this way, consideration has been given to the lessened gas pressure and altered gas pressure in the large caliber bore, by which the bullet is accelerated just barely under the supersonic level (see Claim 3).
Moreover, the handgun, in accord with the invention, is preferably designed as a rapid fire weapon (see Claim 4). This standard weapon of the soldier is especially good for commando task forces, because each soldier is fully at home with this weapon. The exchange of a barrel with the rapidfire weapons brings about no changes in procedure. The large caliber cartridges evidence the same length and the same base diameter as is possessed by the small caliber cartridges, the magazine remains unchanged, and all service elements and hand grips remain as they were before.
Under certain circumstances it is advantageous to employ a modified visual sight, since the ballistics of the large caliber cartridges vary strongly from the ballistics of the small caliber cartridges.
The large caliber cartridge, as already mentioned in the introductory passages, can be a bottle shaped cartridge with a scarcely perceptible neck, or even a comically tapered cartridge without any neck. Essentially, especially in the latter case, the cone apex angle of the large caliber cartridge shell is larger than that of the small caliber cartridge shell. With this situation, if the small caliber cartridge is erroneously placed in the cartridge chamber for the large caliber cartridge, it will reliably hang up there, and will not permit itself to be completely inserted. In this operation, where the large caliber cartridge is concerned, one should strive for a bullet with the greatest possible weight and, accordingly, the greatest possible caliber.
In that effort, compromises may be made, if, perhaps, a silencer or the like is already at hand, the caliber of which is somewhat smaller than the largest possible caliber which might have been obtained for the large caliber cartridge.
Such a large caliber bullet, because of its correspondingly large cross-section, has only a moderate penetration power. However, on the other hand, the said large bullet has a very high retention power on a living body, because the bullet transfers its entire kinetic energy to the said body.
Thus, a subsonic cartridge, in accord with the invention, penetrates a "bulletproof vest"
with a conventional 7.62 mm bullet. However, against the improved body protection favored now by NATO, which is made of 1.2 mm titanium sheet metal and 20 layers of Aramid fiber material (Kevlar), the said bullet is no longer effective, because it collapses or mushrooms against the titanium metal sheet. Further, against the said improved protection, the considerable cross section of the material is not fully penetrated but only tears and the bullet is retained by the Aramid fiber layer or slowed to the point of loss of effectiveness.
In order to assist in this disadvantage, in accord with the invention, the proposal is made (see Claim 5), to point-up the bullet of the large caliber cartridge, although, such a bullet as compared to a blunted or softly rounded bullet has a lesser weight. With the sharpened point, upon impact, the point brings against the titanium so high a loading per cross-sectional area, that a small area penetration can be made. Subsequently, the pressure of the remaining body of the bullet in a forward direction, splits the penetrated point apart with little loss in energy. Even the Aramid fibers do not need to be separated over the entire cross-section of the bullet, but are pressed randomly and with little energy expenditure away from one another by the pointed bullet tip as they would be from the point of a needle.
To accomplish this, (Claim 6) a core is placed in the bullet, which foams this said point and which is made of tungsten carbide or preferentially, steel. Such a point remains practically undeformed upon striking titanium sheet and separates the following Aramid fibers without difficulty.
The object of the invention will be still further explained with the aid of an embodiment presented in the accompanying schematic drawing.
There is shown in:
Fig. 1 an enlarged view of a small caliber, nomal cartridge, Fig. 2 an enlarged view of a large caliber subsonic cartridge, Fig. 3 a large caliber cartridge chamber, in which a small caliber normal cartridge has been inserted, and Fig. 4 a small caliber cartridge chamber, in which a large caliber subsonic cartridge has been inserted.
Fig. 1 shows an enlarged view of a cartridge .223 Remington (5.56 x 45 mm).
This cartridge 10 has a cartridge base 5 and a cartridge casing 2, which extends itself forward to a shoulder 3 at which point the casing narrows in bottle neck shape and tapers into a neck 1.
Within the neck I, is seated a 5.56 mm bullet 7.
The cartridge chamber 20, intended for the reception of this small caliber cartridge, is visible in Fig. 4. The tolerances for the dimensions of the cartridge chamber 20, conform so exactly to the tolerances for the dimensions of the cartridge 10, that no cover (for force fit) is required.
Fig. 2 shows a large caliber cartridge 10'. Let it be known, that the concept, "large caliber", is to only indicate, that the cartridge 10' possesses a clearly greater caliber than that of small caliber cartridge 10 of the Fig. 1. The reference, "large caliber" here is not in the sense of cartridges for large wild life or the like, as has the meaning been taken historically in the realm of long weapons.
The cartridge 10' of Fig. 2, likewise to that of Fig. l, is a bottle shaped cartridge. Both cartridges 10 and 10' have the same overall length, the same base construction and dimensioning.
They can, therefore, be inserted into identical magazines. The cartridge casing 2' of the large caliber cartridge 10' can even be made out of the cartridge casing 2 of the small caliber cartridge casing 10 by shortening and restamping. The cartridge casiny~ 2' of the large caliber cartridge 10' is, at any event, shorter than that of the small caliber cartridge 10 0l Fig.
1. The bullet 7' exhibits a substantial length and has a caliber of 7.62 mm. The bullet weight can run between 12 - 15 g.
The distance between the shoulder 3' and the base 5 however, where the large caliber cartridge 10' is concerned, is clearly less than is this distance for the small caliber cartridge 10.
In the case of~a bullet weight, which can be snore than triple the weight ofthe small caliber bullet, and further, where the muzzle velocity is just under the sonic threshold level, the muzzle energy lies at 30 % of the muzzle energy of the original cartridge. This corresponds to the muzzle energy of a submachine gun, which has the capacity to penetrate most bulletproof vests -but not protective vests declared as resistant to conventional submachine guns of usual caliber (9 - 11 mm).
Because of its shortened cartridge case 2', the large caliber cartridge 10' possesses a more restricted interior space. This supports the circumstances, that the large caliber cartridge 10' develops a lesser muzzle energy and on this account uses less powder. On this account, no additional measures must be taken, to assure the. faultless detonation of this powder in any case.
Fig. 3 and 4 show schematically, in broken form, respectively a rear end of a bore with cartridge chamber 20, i.e. 20' and similarly the forward end of the breech block 11.
Fig. 3 shows the cartridge chamber 20' intended for the large caliber cartridge 10', but into which, as shown, the wrong cartridge has been introduced, namely the small cartridge 10. This cartridge 10 rests with its shoulder 3 immediately before the narrowing 23' -which narrowing is only appropriate for the shoulder 3' of the large caliber cartridge 10' - of the cartridge chamber 20', and on this account, its base 5 protrudes out of the rear of'the said cartridge chamber 20'.
The breech block 11, which subsequently attempts to slide the cartridge into the cartridge chamber 20', ends its effort with a space showing between the back end of the cartridge chamber 20'. This space is greater than the greatest space, as well as the axial closing play, that the locking breech block dare allow in any case. 'The lockup, on this account, remains still open.
(Weapons for the stated cartridge .223 are, in a known manner, always locked weapons.) Therefor no firing can occur. (The firing pin in the breeching block can only strike the cartridge, upon full locking.) A reversed situation is shown in Fig. 4, depicting the cartridge chamber 20 for the small, normal cartridge 10, wherein a large caliber cartridge 10' has been inserted.
This large caliber cartridge 10' stops with the tip of its bullet 7' in that same portion of the cartridge chamber 20, which corresponds to the neck 1 of the small caliber cartridge 10. That is to say, it abuts with its bullet 7' against the cartridge chamber narrowing 23, which should match only the shoulder 3 of the small caliber cartridge 10 (as shown). Instead of this, the large caliber bullet 7' can also be stopped on the forward end of the narrowing 23 of the cartridge chamber 20. In either case, the base 5 of the cartridge 10' protrudes farther out of the cartridge chamber 20, than is permitted by the above mentioned maximum distance. Also in this case, the closure of the breeching comes to a stillstand, before the cartridge 10' can be detonated.
When the breeching block cannot be closed, the situation becomes quite visibly apparent.
The marksman must then recognize his error, when he tries to put the wrong cartridge into the.
cartridge chamber. This is best done, of course, before an enemy engagement, not while it is going on.
Thus, a firing of the wrong cartridge, as is possible in the present state of the technology, is excluded.
The small caliber, normal cartridge of Fig. l, exhibits a rounded bullet tip and is furnished with a tombac sheathing. The large caliber cartridge of Fig. 2, possesses a slim, pointed bullet which is formed from a tipped steel core 1 1' which is centrally inserted in the rest of the bullet 7'.
This steel core prevents that the bullet 7' will crumple up and flatten out when it strikes a resistance. With such a core bullet 7', even light armor is still easily penetrable, in contrast to the conventional fully encased bullet of the same caliber and the same hitting power, but lacking such a core as 1 1'.
The invented weapon system thus makes it possible to employ a modern, small caliber, rapid fire rifle in engagements, wherein the use of silencers is required and a suppression of the bullet sound is advantageous. With use of such an invented weapon, the hitting power of a submachine gun is achieved, and, because of the construction of the bullet, a decisive improvement is found in the penetrability of the firing.
In these documents, when reference is given to position, the assumption is of a normal model of a handgun in a horizontal position, and "forward" is in the direction of shooting.
If a silenced weapon is to truly Function without sound, then, the expansion noise of the gases which drive the bullet plus the sound of the cartridge detonation must be suppressed. A
third sound produced by the fired bullet will last as long as the bullet travels at supersonic velocity. For the suppression of the sound of the bullet, it is possible to choose cartridges wherein, at the very beginning, the velocity of the bullets is subsonic. This condition is true for many pistol cartridges. As an alternate, one can excise gas relief passages in the barrel, which divert a portion of the driving gases into a silencer, and in this way the said passages take care that the velocity of the bullet in flight does not exceed the supersonic level. This diversion of gas is only a reasonable measure, when the nominal muzzle velocity of the bullet does not overstep the supersonic border. Finally, it is also possible, to make use of special, somewhat experimentally made cartridges, the bullets of which do not attain supersonic velocities.
Since the 1960's the caliber of military weapons has become steadily smaller.
In the second world war, the caliber 6.5 mm (Italy, Japan, Sweden) was generally seen as being too small to be effective as a military bullet. The average caliber lay, at that time, between 7.5 to 8 mm.
Today, the modern NATO caliber is set at only 5.56 mm (.223 Remington). In the military thinking of the previous Soviet Union, the effort was made to reduce caliber still further., striving for something like 4.5 mm.
Concerning the cartridge .223, the bullet itself weighs some 3.5 g. In order to maintain a sufficient energy at muzzle, this will demand a very high departure velocity, which exceeds the supersonic level by three times. The resulting muzzle energy, in any case, is closely calculated and falling short of the calculated value is to be; avoided.
If one would redesign this .223 cartridge so that, with some reliability, its bullet would travel at a subsonic velocity, one would obtain a muzzle energy, which would run at only a tenth of its original muzzle energy. This would be a muzzle energy appropriate for a small bore weapon with weaker ammunition (subsonic munitions). This bullet would scarcely penetrate a notebook . A "bulletproof vest" could offer complete protective cover.
We have today, military command organizations, for whom the greatest possible repression of sounds emanating from firing is essential. To achieve such a goal, for the above reasons, no military weaponry can be employed, even when said weapons are equipped with silencers.
Namely, either the report of the 'ring is not silenced, or the effect of the shooting is insufficient.
Now, it is entirely possible to make use of a submachine gun with a silencer, when the said gun fires on a closed breech basis and not, as is usual, from an open breech basis. With such a submachine gun, precision shots can be executed. The applicant markets such submachine guns.
It would be, however, better to employ the conventional military rifle for the use of such a silencer, as this weapon is already commercially available and need not be specially obtained.
Further, the marksmen teams are familiar with the conventional weapon.
Thus the invention proposes to equip a conventional, military weapon with a silencer, in spite of the fact, from the above cited reasons, such a combination seems inappropriate.
To accomplish this goal, one can provide the handgun with an exchangeable barrel for a large caliber cartridge. The reason for this, is that the larger caliber indicates a cartridge with a greater bullet weight, and consequently a greater muzzle energy -- even in the subsonic velocity range.
However, in doing this, the earlier cited difficulties in military application are substituted for by new problems, namely the danger of erroneous cartridge switch. Here is an historic example:
In the first world war, the Mauler pistol, which already appeared on the market it 1896, was designed for the bottle cartridge 7.63 mm, but was converted to the 9 mm German Ordnance cartridge Parabellum. This conversion occurred only by use of another barrel, wherein however, the barrel for 7.63 mm and 9 mm were fully exchangeable. Other conversions and/or modifications were not necessary. Principally, a characteristic pistol stock became a recognition signal alerting that an exchange had been made.
In fact, it did come to inadvertent switches, since either of the cartridges could be loaded into either pistol. If the 9.3 mm pistol were loaded with 7.63 mm cartridges, firing was still possible, but with reduced muzzle energy, accompanied by an erratic trajectory and loading difficulties. In the reverse situation, the 9 mm bullet squeezed itself through the 7.63 bore, and widened this outwardly, so that it became unuseable. Possibly, the bolts which limited the recoil travel for the breeching had been thereby deformed.
Also, the earlier Mauler-cartridge 8 x 57 was modified several times, whereby, fundamentally, the cartridge with the smaller caliber (about 7 x 57) could be loaded into the bore intended for the larger caliber. In this case, the advantage was gained, that no direct damage to the weapon could be brought about. However, the accuracy of the gun, especially the sequential bull's-eye reliability was greatly reduced. If, for instance, the result of a commando raid depended on the results of a shot hitting its mark, then any inefficiency in the aim cannot be accepted. Particularly this is valid, when error can be attributed to a faulty loading of the weapon.
Based on these reasons, the invention would like to make available a handheld firearm system, which would be free of the above di fGculties.
In accord with the invention, this intention is achieved by means of the object of Claim I , as well as in that, the handgun system also exhibits the following features:
a) an exchangeable barrel is provided, which is designed for another, bottle shaped cartridge with an essentially greater caliber;
b) both cartridges have approximately the same length and same base measurements; and c.l) the bullet of the large caliber cartridge is so dimensioned, that, if any effort is made to place the large caliber cartridge in the cartridge chamber of the bore for the smaller caliber, the said bullet will seat itself in the area of the cartridge section corresponding to the neck of the smaller cartridge and thereby prevent a complete insertion of the cartridge into the cartridge chamber.
and/or c.2) the cartridge with the small caliber is so dimensioned, that any attempt to put the same into the cartridge chamber of the bore of the larger caliber, will result m its shoulder impinging against the shoulder of that section of the cartridge chamber corresponding to the larger caliber, or it will seat itself in front of this section, with the result that its complete insertion into the said cartridge chamber is prevented.
The shoulder of the large caliber cartridge is set back, in reference to the small caliber cartridge, or the large caliber cartridge exhibits at its shoulder a smaller diameter than does the small caliber cartridge, in other words, the large caliber cartridge is slimmer. The large caliber cartridge is preferably bottle shaped, but can also be slightly conical.
In each of these cases, the respective cartridge protrudes from the non-fit cartridge chamber so far to the rear, that it remains unlatched by the oncoming breech block, and for this reason, the cartridge will not fire, i.e. cannot be detonated.
Thus, only one barrel with, if required, a gas cylinder, silencer and munitions need be made available for the make-over of one handgun. These are parts, which, for little expense, can be purchased and kept available in the armory of a company.
DE 41 43 48G C2 has already disclosed a maneuver cartridge ban-el, into which a live cartridge simply cannot be inserted. This possibility is not explained in the patent text.
The maneuver cartridge can, however, in case of an exchange, be immediately loaded into the live ammunition barrel and also fired therefrom. This is contrary to the invention wherein a cartridge exchange is immediately recognizable and in no case can switched cartridges be fired.
Naturally, the weapon system of the invention is principally appropriate to handguns, in which the barrel is simple to exchange. However the invented system can still be applied, although the barrel exchange meets with more complexities, in cases where a number of other weapons are rebuilt for long continuous usage or are so equipped from the start for the large caliber cartridges.
In the large calibered cartridges, the shoulder, compared to that of the small caliber cartridge, is shortened to the rear, making the bullet essentially one diameter longer in the forward direction. The result is a very long, and conseduently very heavy bullet.
Basing considerations on the fact that the larger caliber is about 2 mm larger than is the smaller, the conclusion must be drawn that the bullet weight is almost exactly four times the weight of the smaller caliber bullet. If this bullet be brought just barely into the subsonic range, then there is surrendered some 35 to 40 % of the muzzle energy of the small caliber bullet. This matches the muzzle energy of a heavy revolver. The above mentioned "bulletproof vest" offers to a direct hit by this weapon, no kind of protection.
Preferred details may be inferred from Claim 2.
For small caliber cartridges of the above mentioned kind, there exist repeating military rifles. Among these are, for instance, the sniper weapons of the previous DDR.
Such a weapon could be equipped with a changeable original barrel as well as an exchange barrel for the large caliber cartridges and be further fitted with a silencer.
Preference is given, however, to a weapon system in accord with the invention, which includes a handgun designed with a gas pressure loader, and with which the bore is provided with a gas removal device (for instance, gas boring, cylinder for gas piston).
In accord with the invention, the exchange barrel possesses its own gas removal device, and, taking this removal device with it, can exchange with the existing barrel, with its gas removal device.
In this way, consideration has been given to the lessened gas pressure and altered gas pressure in the large caliber bore, by which the bullet is accelerated just barely under the supersonic level (see Claim 3).
Moreover, the handgun, in accord with the invention, is preferably designed as a rapid fire weapon (see Claim 4). This standard weapon of the soldier is especially good for commando task forces, because each soldier is fully at home with this weapon. The exchange of a barrel with the rapidfire weapons brings about no changes in procedure. The large caliber cartridges evidence the same length and the same base diameter as is possessed by the small caliber cartridges, the magazine remains unchanged, and all service elements and hand grips remain as they were before.
Under certain circumstances it is advantageous to employ a modified visual sight, since the ballistics of the large caliber cartridges vary strongly from the ballistics of the small caliber cartridges.
The large caliber cartridge, as already mentioned in the introductory passages, can be a bottle shaped cartridge with a scarcely perceptible neck, or even a comically tapered cartridge without any neck. Essentially, especially in the latter case, the cone apex angle of the large caliber cartridge shell is larger than that of the small caliber cartridge shell. With this situation, if the small caliber cartridge is erroneously placed in the cartridge chamber for the large caliber cartridge, it will reliably hang up there, and will not permit itself to be completely inserted. In this operation, where the large caliber cartridge is concerned, one should strive for a bullet with the greatest possible weight and, accordingly, the greatest possible caliber.
In that effort, compromises may be made, if, perhaps, a silencer or the like is already at hand, the caliber of which is somewhat smaller than the largest possible caliber which might have been obtained for the large caliber cartridge.
Such a large caliber bullet, because of its correspondingly large cross-section, has only a moderate penetration power. However, on the other hand, the said large bullet has a very high retention power on a living body, because the bullet transfers its entire kinetic energy to the said body.
Thus, a subsonic cartridge, in accord with the invention, penetrates a "bulletproof vest"
with a conventional 7.62 mm bullet. However, against the improved body protection favored now by NATO, which is made of 1.2 mm titanium sheet metal and 20 layers of Aramid fiber material (Kevlar), the said bullet is no longer effective, because it collapses or mushrooms against the titanium metal sheet. Further, against the said improved protection, the considerable cross section of the material is not fully penetrated but only tears and the bullet is retained by the Aramid fiber layer or slowed to the point of loss of effectiveness.
In order to assist in this disadvantage, in accord with the invention, the proposal is made (see Claim 5), to point-up the bullet of the large caliber cartridge, although, such a bullet as compared to a blunted or softly rounded bullet has a lesser weight. With the sharpened point, upon impact, the point brings against the titanium so high a loading per cross-sectional area, that a small area penetration can be made. Subsequently, the pressure of the remaining body of the bullet in a forward direction, splits the penetrated point apart with little loss in energy. Even the Aramid fibers do not need to be separated over the entire cross-section of the bullet, but are pressed randomly and with little energy expenditure away from one another by the pointed bullet tip as they would be from the point of a needle.
To accomplish this, (Claim 6) a core is placed in the bullet, which foams this said point and which is made of tungsten carbide or preferentially, steel. Such a point remains practically undeformed upon striking titanium sheet and separates the following Aramid fibers without difficulty.
The object of the invention will be still further explained with the aid of an embodiment presented in the accompanying schematic drawing.
There is shown in:
Fig. 1 an enlarged view of a small caliber, nomal cartridge, Fig. 2 an enlarged view of a large caliber subsonic cartridge, Fig. 3 a large caliber cartridge chamber, in which a small caliber normal cartridge has been inserted, and Fig. 4 a small caliber cartridge chamber, in which a large caliber subsonic cartridge has been inserted.
Fig. 1 shows an enlarged view of a cartridge .223 Remington (5.56 x 45 mm).
This cartridge 10 has a cartridge base 5 and a cartridge casing 2, which extends itself forward to a shoulder 3 at which point the casing narrows in bottle neck shape and tapers into a neck 1.
Within the neck I, is seated a 5.56 mm bullet 7.
The cartridge chamber 20, intended for the reception of this small caliber cartridge, is visible in Fig. 4. The tolerances for the dimensions of the cartridge chamber 20, conform so exactly to the tolerances for the dimensions of the cartridge 10, that no cover (for force fit) is required.
Fig. 2 shows a large caliber cartridge 10'. Let it be known, that the concept, "large caliber", is to only indicate, that the cartridge 10' possesses a clearly greater caliber than that of small caliber cartridge 10 of the Fig. 1. The reference, "large caliber" here is not in the sense of cartridges for large wild life or the like, as has the meaning been taken historically in the realm of long weapons.
The cartridge 10' of Fig. 2, likewise to that of Fig. l, is a bottle shaped cartridge. Both cartridges 10 and 10' have the same overall length, the same base construction and dimensioning.
They can, therefore, be inserted into identical magazines. The cartridge casing 2' of the large caliber cartridge 10' can even be made out of the cartridge casing 2 of the small caliber cartridge casing 10 by shortening and restamping. The cartridge casiny~ 2' of the large caliber cartridge 10' is, at any event, shorter than that of the small caliber cartridge 10 0l Fig.
1. The bullet 7' exhibits a substantial length and has a caliber of 7.62 mm. The bullet weight can run between 12 - 15 g.
The distance between the shoulder 3' and the base 5 however, where the large caliber cartridge 10' is concerned, is clearly less than is this distance for the small caliber cartridge 10.
In the case of~a bullet weight, which can be snore than triple the weight ofthe small caliber bullet, and further, where the muzzle velocity is just under the sonic threshold level, the muzzle energy lies at 30 % of the muzzle energy of the original cartridge. This corresponds to the muzzle energy of a submachine gun, which has the capacity to penetrate most bulletproof vests -but not protective vests declared as resistant to conventional submachine guns of usual caliber (9 - 11 mm).
Because of its shortened cartridge case 2', the large caliber cartridge 10' possesses a more restricted interior space. This supports the circumstances, that the large caliber cartridge 10' develops a lesser muzzle energy and on this account uses less powder. On this account, no additional measures must be taken, to assure the. faultless detonation of this powder in any case.
Fig. 3 and 4 show schematically, in broken form, respectively a rear end of a bore with cartridge chamber 20, i.e. 20' and similarly the forward end of the breech block 11.
Fig. 3 shows the cartridge chamber 20' intended for the large caliber cartridge 10', but into which, as shown, the wrong cartridge has been introduced, namely the small cartridge 10. This cartridge 10 rests with its shoulder 3 immediately before the narrowing 23' -which narrowing is only appropriate for the shoulder 3' of the large caliber cartridge 10' - of the cartridge chamber 20', and on this account, its base 5 protrudes out of the rear of'the said cartridge chamber 20'.
The breech block 11, which subsequently attempts to slide the cartridge into the cartridge chamber 20', ends its effort with a space showing between the back end of the cartridge chamber 20'. This space is greater than the greatest space, as well as the axial closing play, that the locking breech block dare allow in any case. 'The lockup, on this account, remains still open.
(Weapons for the stated cartridge .223 are, in a known manner, always locked weapons.) Therefor no firing can occur. (The firing pin in the breeching block can only strike the cartridge, upon full locking.) A reversed situation is shown in Fig. 4, depicting the cartridge chamber 20 for the small, normal cartridge 10, wherein a large caliber cartridge 10' has been inserted.
This large caliber cartridge 10' stops with the tip of its bullet 7' in that same portion of the cartridge chamber 20, which corresponds to the neck 1 of the small caliber cartridge 10. That is to say, it abuts with its bullet 7' against the cartridge chamber narrowing 23, which should match only the shoulder 3 of the small caliber cartridge 10 (as shown). Instead of this, the large caliber bullet 7' can also be stopped on the forward end of the narrowing 23 of the cartridge chamber 20. In either case, the base 5 of the cartridge 10' protrudes farther out of the cartridge chamber 20, than is permitted by the above mentioned maximum distance. Also in this case, the closure of the breeching comes to a stillstand, before the cartridge 10' can be detonated.
When the breeching block cannot be closed, the situation becomes quite visibly apparent.
The marksman must then recognize his error, when he tries to put the wrong cartridge into the.
cartridge chamber. This is best done, of course, before an enemy engagement, not while it is going on.
Thus, a firing of the wrong cartridge, as is possible in the present state of the technology, is excluded.
The small caliber, normal cartridge of Fig. l, exhibits a rounded bullet tip and is furnished with a tombac sheathing. The large caliber cartridge of Fig. 2, possesses a slim, pointed bullet which is formed from a tipped steel core 1 1' which is centrally inserted in the rest of the bullet 7'.
This steel core prevents that the bullet 7' will crumple up and flatten out when it strikes a resistance. With such a core bullet 7', even light armor is still easily penetrable, in contrast to the conventional fully encased bullet of the same caliber and the same hitting power, but lacking such a core as 1 1'.
The invented weapon system thus makes it possible to employ a modern, small caliber, rapid fire rifle in engagements, wherein the use of silencers is required and a suppression of the bullet sound is advantageous. With use of such an invented weapon, the hitting power of a submachine gun is achieved, and, because of the construction of the bullet, a decisive improvement is found in the penetrability of the firing.
Claims (19)
1. A system for firing either a first cartridge or a second cartridge from a handgun, the first and second cartridges having dissimilar calibers and dissimilar shoulders, the system comprising:
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber, the first cartridge chamber having a narrowing shoulder sized and positioned to receive the shoulder of the first cartridge so as to permit placement of the first cartridge into the first barrel in a firing position, the narrowing shoulder of the first cartridge chamber further being sized and positioned to engage a portion of the second cartridge so as to prevent placement of the second cartridge into the first cartridge chamber in the firing position; and a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber including a narrowing shoulder sized and positioned to receive the shoulder of the second cartridge so as to permit placement of the second cartridge into the second barrel in a firing position, the narrowing shoulder of the second cartridge chamber further being sized and positioned to engage a portion of the first cartridge so as to prevent placement of the first cartridge into the second cartridge chamber in the firing position.
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber, the first cartridge chamber having a narrowing shoulder sized and positioned to receive the shoulder of the first cartridge so as to permit placement of the first cartridge into the first barrel in a firing position, the narrowing shoulder of the first cartridge chamber further being sized and positioned to engage a portion of the second cartridge so as to prevent placement of the second cartridge into the first cartridge chamber in the firing position; and a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber including a narrowing shoulder sized and positioned to receive the shoulder of the second cartridge so as to permit placement of the second cartridge into the second barrel in a firing position, the narrowing shoulder of the second cartridge chamber further being sized and positioned to engage a portion of the first cartridge so as to prevent placement of the first cartridge into the second cartridge chamber in the firing position.
2. A system for firing either a first cartridge or a second cartridge from a handgun, the first and second cartridges having dissimilar calibers, each of the first and second cartridges further having a circular base end, a circular bullet-receiving end, and an interconnecting casing, the casing of each of the first and second cartridges further including a narrowing shoulder disposed between the base end and the bullet-receiving end, the system comprising:
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber sized to permit placement of the first cartridge into the first barrel in a firing position, the first cartridge chamber further being sized to prevent placement of the second cartridge into the first cartridge chamber in the firing position; and a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber sized to permit placement of the second cartridge into the second barrel in a firing position, the second cartridge chamber further being sized to prevent placement of the first cartridge into the second cartridge chamber in the firing position;
and further wherein:
each of the first and second barrels include a breech end, each of the first and second cartridge chambers including a shoulder spaced away from the breech end, the shoulder of the first cartridge chamber being located a first distance from the breech end of the first barrel, the shoulder of the second cartridge chamber being located a second distance from the breech end of the second barrel; and wherein the shoulder of the first cartridge chamber is sized and positioned to receive the narrowing shoulder of the first cartridge when the first cartridge is in the firing position, and further wherein the shoulder of the second cartridge chamber is sized and positioned to receive the narrowing shoulder of the second cartridge when the second cartridge is in the firing position.
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber sized to permit placement of the first cartridge into the first barrel in a firing position, the first cartridge chamber further being sized to prevent placement of the second cartridge into the first cartridge chamber in the firing position; and a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber sized to permit placement of the second cartridge into the second barrel in a firing position, the second cartridge chamber further being sized to prevent placement of the first cartridge into the second cartridge chamber in the firing position;
and further wherein:
each of the first and second barrels include a breech end, each of the first and second cartridge chambers including a shoulder spaced away from the breech end, the shoulder of the first cartridge chamber being located a first distance from the breech end of the first barrel, the shoulder of the second cartridge chamber being located a second distance from the breech end of the second barrel; and wherein the shoulder of the first cartridge chamber is sized and positioned to receive the narrowing shoulder of the first cartridge when the first cartridge is in the firing position, and further wherein the shoulder of the second cartridge chamber is sized and positioned to receive the narrowing shoulder of the second cartridge when the second cartridge is in the firing position.
3. The system of claim 2, wherein a diameter of the first cartridge chamber adjacent the breech end of the first barrel is equal to a diameter of the second cartridge chamber adjacent to the breech end of the second barrel, and wherein the first distance is greater than the second distance.
4. The system of claim 3, each of the first and second cartridges having a bullet, and wherein:
the second cartridge chamber includes a narrowed portion, the narrowed portion of the second cartridge chamber having a diameter smaller than a diameter of a bullet of the second cartridge.
the second cartridge chamber includes a narrowed portion, the narrowed portion of the second cartridge chamber having a diameter smaller than a diameter of a bullet of the second cartridge.
5. The system of claim 2, wherein the shoulder of the first cartridge chamber and the shoulder of the second cartridge chamber are conical.
6. The system of claim 2, wherein the shoulder of at least one of the first cartridge chamber and the second cartridge chamber is conical.
7. The system of claim 1, the first and second cartridges each having a circular base end, a circular bullet-receiving end, and an interconnecting casing, each casing including a narrowing shoulder disposed between the base end and the bullet-receiving end, and wherein:
the handgun includes a breech, the breech shiftable between an open position and a closed position;
each of the first and second barrels including a breech end, the breech end operatively engaging the breech when the breech is in the closed position, the shoulder of the first cartridge chamber being located a first distance from the breech end of the first barrel, the shoulder of the second cartridge chamber being located a second distance from the breech end of the second barrel; and whereby the shoulder of the first cartridge chamber receives the shoulder of the first cartridge, thereby permitting the breech to shift to the closed position, and further whereby the shoulder of the second cartridge chamber receives the shoulder of the second cartridge, thereby permitting the breech to shift to the closed position.
the handgun includes a breech, the breech shiftable between an open position and a closed position;
each of the first and second barrels including a breech end, the breech end operatively engaging the breech when the breech is in the closed position, the shoulder of the first cartridge chamber being located a first distance from the breech end of the first barrel, the shoulder of the second cartridge chamber being located a second distance from the breech end of the second barrel; and whereby the shoulder of the first cartridge chamber receives the shoulder of the first cartridge, thereby permitting the breech to shift to the closed position, and further whereby the shoulder of the second cartridge chamber receives the shoulder of the second cartridge, thereby permitting the breech to shift to the closed position.
8. A firearm system for a handgun comprising:
a shiftable breech;
a first barrel and a second barrel interchangeably mountable to the handgun;
a first cartridge having a first caliber bullet and a narrowing shoulder disposed a first distance from a base of the first cartridge;
a second cartridge having a second caliber bullet larger than the first caliber bullet and having a narrowing shoulder disposed a second distance from a base of the second cartridge;
the first barrel including a first cartridge chamber, the first cartridge chamber having a shoulder arranged to permit placement of the first cartridge into the first barrel in a firing position, the shoulder of the first cartridge chamber further arranged to prevent full placement of the second cartridge into the first barrel in a firing position; and the second barrel including a second cartridge chamber adapted to permit placement of the second cartridge into the second barrel in a firing position, the second cartridge chamber further being sized and positioned to prevent full placement of the first cartridge into the second barrel in a firing position.
a shiftable breech;
a first barrel and a second barrel interchangeably mountable to the handgun;
a first cartridge having a first caliber bullet and a narrowing shoulder disposed a first distance from a base of the first cartridge;
a second cartridge having a second caliber bullet larger than the first caliber bullet and having a narrowing shoulder disposed a second distance from a base of the second cartridge;
the first barrel including a first cartridge chamber, the first cartridge chamber having a shoulder arranged to permit placement of the first cartridge into the first barrel in a firing position, the shoulder of the first cartridge chamber further arranged to prevent full placement of the second cartridge into the first barrel in a firing position; and the second barrel including a second cartridge chamber adapted to permit placement of the second cartridge into the second barrel in a firing position, the second cartridge chamber further being sized and positioned to prevent full placement of the first cartridge into the second barrel in a firing position.
9. A firearm system for a handgun comprising:
a shiftable breech;
a first cartridge and a second cartridge having dissimilar calibers;
a first barrel and a second barrel interchangeably mounted to the handgun, the first barrel including a first cartridge chamber sized to permit placement of the first cartridge into the first barrel in a firing position, the first cartridge chamber further sized to prevent full placement of the second cartridge into the first cartridge chamber, the second barrel including a second cartridge chamber sized to permit placement of the second cartridge into the second barrel in a firing position, the second cartridge chamber further sized to prevent full placement of the first cartridge into the second cartridge chamber; and the first and second cartridges each having a circular base end, a circular bullet-receiving end, and an interconnecting casing, each casing including a narrowing shoulder disposed between the base end and the bullet-receiving end;
each of the first and second barrels including a breech end, the first cartridge chamber including a shoulder spaced a first distance away from the breech end of the first barrel, the second cartridge chamber including a shoulder spaced a second distance away from the breech end of the second barrel;
the shoulder of the first cartridge chamber receiving the shoulder of the first cartridge when the first cartridge is in the firing position, the shoulder of the second cartridge chamber receiving the shoulder of the second cartridge when the second cartridge is in the firing position.
a shiftable breech;
a first cartridge and a second cartridge having dissimilar calibers;
a first barrel and a second barrel interchangeably mounted to the handgun, the first barrel including a first cartridge chamber sized to permit placement of the first cartridge into the first barrel in a firing position, the first cartridge chamber further sized to prevent full placement of the second cartridge into the first cartridge chamber, the second barrel including a second cartridge chamber sized to permit placement of the second cartridge into the second barrel in a firing position, the second cartridge chamber further sized to prevent full placement of the first cartridge into the second cartridge chamber; and the first and second cartridges each having a circular base end, a circular bullet-receiving end, and an interconnecting casing, each casing including a narrowing shoulder disposed between the base end and the bullet-receiving end;
each of the first and second barrels including a breech end, the first cartridge chamber including a shoulder spaced a first distance away from the breech end of the first barrel, the second cartridge chamber including a shoulder spaced a second distance away from the breech end of the second barrel;
the shoulder of the first cartridge chamber receiving the shoulder of the first cartridge when the first cartridge is in the firing position, the shoulder of the second cartridge chamber receiving the shoulder of the second cartridge when the second cartridge is in the firing position.
10. The system of claim 9, wherein a diameter of the first cartridge chamber adjacent the breech end of the first barrel is equal to a diameter of the second cartridge chamber adjacent to the breech end of the second barrel.
11. The system of claim 9, wherein the first distance is greater than the second distance.
12. The system of claim 9, wherein the first and second cartridges each includes a bullet, and wherein the second cartridge chamber includes a narrowed portion, the narrowed portion of the second cartridge chamber having a diameter smaller than a diameter of the bullet of the second cartridge.
13. The system of claim 9, wherein the shoulder of the first cartridge chamber and the shoulder of the second cartridge chamber are conical.
14. The system of claim 9, wherein the shoulder of the first cartridge and the shoulder of the second cartridge are tapered.
15. The system of claim 12, wherein the bullet of the second cartridge is a pointed bullet.
16. The system of claim 15, the bullet having a tip and a core made from a hard metal.
17. The system of claim 16, wherein the hard metal is steel.
18. A system for firing either a first cartridge or a second cartridge from a handgun comprising:
a first and a second cartridge having dissimilar calibers;
a breech shiftable between an open position and a closed operational position;
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber;
a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber;
means defined in part by cooperating portions of the first barrel and the second cartridge for preventing closure of the breech when the second cartridge is placed in the first cartridge chamber; and means defined in part by cooperating portions of the second barrel and the first cartridge for preventing closure of the breech when the first cartridge is placed in the second cartridge chamber.
a first and a second cartridge having dissimilar calibers;
a breech shiftable between an open position and a closed operational position;
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber;
a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber;
means defined in part by cooperating portions of the first barrel and the second cartridge for preventing closure of the breech when the second cartridge is placed in the first cartridge chamber; and means defined in part by cooperating portions of the second barrel and the first cartridge for preventing closure of the breech when the first cartridge is placed in the second cartridge chamber.
19. A system for firing either a first cartridge or a second cartridge from a firearm comprising:
a first and a second cartridge having dissimilar calibers;
a breech shiftable between an open position and a closed operational position;
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber;
a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber;
the first cartridge chamber being shaped and sized to cooperate with portions of the second cartridge to prevent closure of the breech when the second cartridge is placed in the first cartridge chamber; and the second cartridge chamber being shaped and sized to cooperate with portions of the first cartridge to prevent closure of the breech when the first cartridge is placed in the second cartridge chamber.
a first and a second cartridge having dissimilar calibers;
a breech shiftable between an open position and a closed operational position;
a first barrel removably mounted to the handgun, the first barrel including a first cartridge chamber;
a second barrel removably mounted to the handgun, the second barrel including a second cartridge chamber;
the first cartridge chamber being shaped and sized to cooperate with portions of the second cartridge to prevent closure of the breech when the second cartridge is placed in the first cartridge chamber; and the second cartridge chamber being shaped and sized to cooperate with portions of the first cartridge to prevent closure of the breech when the first cartridge is placed in the second cartridge chamber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19925676.4 | 1999-06-04 | ||
| DE19925676A DE19925676C1 (en) | 1999-06-04 | 1999-06-04 | Hand gun for firing bottle-shaped cartridges has exchangeable original barrel with cartridge magazine and breech block which for cartridge ignition has only main distance |
| PCT/EP2000/004784 WO2000075598A1 (en) | 1999-06-04 | 2000-05-25 | Small arm system with exchangeable barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2339381A1 CA2339381A1 (en) | 2000-12-14 |
| CA2339381C true CA2339381C (en) | 2003-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002339381A Expired - Fee Related CA2339381C (en) | 1999-06-04 | 2000-05-25 | Small arm system with exchangeable barrel |
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| US (1) | US6493979B2 (en) |
| EP (1) | EP1102959B1 (en) |
| KR (1) | KR100434785B1 (en) |
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| CA (1) | CA2339381C (en) |
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| PT (1) | PT1102959E (en) |
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|---|---|---|---|---|
| US20040244254A1 (en) * | 2003-06-09 | 2004-12-09 | Barfield Christopher A.. | Firearm safety device |
| US20060243125A1 (en) * | 2005-05-02 | 2006-11-02 | Surefire, Llc | Failsafe training firearms and blank firing adapter therefor |
| US7444775B1 (en) | 2005-09-14 | 2008-11-04 | Schuetz Robert C E | Caliber convertible AR-15 upper receiver system |
| DE102006019645B4 (en) * | 2006-04-27 | 2008-07-24 | Heckler & Koch Gmbh | Exerciser for self-loading grenade launcher |
| US9459060B2 (en) | 2009-10-05 | 2016-10-04 | Colt's Manufacturing Ip Holding Company Llc | Modular firearm |
| EP2486362B1 (en) | 2009-10-05 | 2019-06-26 | Colt's Manufacturing IP Holding Company LLC | Modular automatic or semi-automatic rifle |
| US9103618B2 (en) | 2013-01-09 | 2015-08-11 | Daniel Defense, Inc. | Suppressor assembly for a firearm |
| DE202016104939U1 (en) * | 2016-06-13 | 2017-09-14 | Rheinmetall Waffe Munition Gmbh | Combat vehicle with a weapon system |
| AT523170B1 (en) * | 2020-09-02 | 2021-06-15 | Conle Henning | Firearm with cartridge |
| CN114046687B (en) * | 2021-11-02 | 2023-10-13 | 南京理工大学 | Light sniper rifle barrel capable of improving stability of warhead |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3196569A (en) * | 1964-06-22 | 1965-07-27 | Daniel J Thomason | Shotgun gauge adapter |
| US3339304A (en) * | 1965-10-23 | 1967-09-05 | Emhart Corp | Shotgun gauge adapter |
| US3708841A (en) * | 1971-07-16 | 1973-01-09 | Idaho Bank Of Commerce | Method of making firearms having interchangeable barrels |
| EG16888A (en) * | 1983-03-26 | 1989-01-30 | Hilton Gun Co | Fire arms |
| US4494332A (en) * | 1983-03-31 | 1985-01-22 | Michael Matievich | Firearm capable of firing different-sized cartridges |
| DE3522027A1 (en) * | 1985-06-20 | 1987-01-02 | Benedikt Rieger | RIFLE WITH A RIFLE HOLDER FOR INTERCHANGE BARREL |
| US4735009A (en) * | 1986-05-13 | 1988-04-05 | Jett Jr Thomas M | Small arms caliber reducing adaptor kit |
| DE3906496A1 (en) * | 1989-03-01 | 1990-09-20 | Karl K Mayer | HUNTED RIFLE WITH RIFLE AND CYLINDER LOCK, FOR THE BULLET |
| US4969283A (en) * | 1989-10-12 | 1990-11-13 | The United States Of America As Represented By The United States Department Of Energy | Firearm equipped with live round inhibiting means and method of making same |
| US4989359A (en) * | 1989-12-01 | 1991-02-05 | Southwest Shooters Supply, Inc. | Shotgun having interchangeable barrels |
| DE4008357A1 (en) * | 1990-03-15 | 1991-09-19 | Fritz Bernhard | Conversion of shot gun to use different calibre ammunition - by fitting liner in gun barrel |
| AT400197B (en) * | 1990-03-15 | 1995-10-25 | Vojta Maximilian | SYSTEM FOR CHANGING THE RIFLE OF A FIREARM |
| US5463959A (en) * | 1991-03-15 | 1995-11-07 | Kramer; Thomas | 6.5 calibre cartridge for rifles and cartridge chamber therefor |
| DE4143486C2 (en) * | 1991-08-23 | 1996-06-27 | Rheinmetall Ind Gmbh | Maneuver cartridge tube for firing telescopic maneuver cartridges |
| US5410834A (en) * | 1993-08-05 | 1995-05-02 | Michael Edward Benton | Rifle with interchangeable barrel |
| US5822904A (en) * | 1997-03-14 | 1998-10-20 | Cove Corporation | Subsuoic ammunition |
| US6293203B1 (en) * | 1997-09-22 | 2001-09-25 | William Rogers Henry Alexander | Firearms and ammunition |
| US6293040B1 (en) * | 1999-08-27 | 2001-09-25 | Defense Procurement Manufacturing Services, Inc. | Interchangeable weapon receiver for alternate ammunition |
| US6295751B1 (en) * | 2000-05-26 | 2001-10-02 | Charles J. Piwonski | Flare attachment for a firearm with a removable barrel |
-
1999
- 1999-06-04 DE DE19925676A patent/DE19925676C1/en not_active Expired - Fee Related
-
2000
- 2000-05-25 WO PCT/EP2000/004784 patent/WO2000075598A1/en active IP Right Grant
- 2000-05-25 KR KR10-2001-7001392A patent/KR100434785B1/en not_active IP Right Cessation
- 2000-05-25 PT PT00941986T patent/PT1102959E/en unknown
- 2000-05-25 EP EP00941986A patent/EP1102959B1/en not_active Expired - Lifetime
- 2000-05-25 CA CA002339381A patent/CA2339381C/en not_active Expired - Fee Related
- 2000-05-25 AT AT00941986T patent/ATE215686T1/en not_active IP Right Cessation
- 2000-05-25 DE DE50000131T patent/DE50000131D1/en not_active Expired - Fee Related
- 2000-05-25 ES ES00941986T patent/ES2172501T3/en not_active Expired - Lifetime
- 2000-11-20 ZA ZA200006754A patent/ZA200006754B/en unknown
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2001
- 2001-02-03 US US09/776,192 patent/US6493979B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000075598A1 (en) | 2000-12-14 |
| CA2339381A1 (en) | 2000-12-14 |
| US20010045045A1 (en) | 2001-11-29 |
| ATE215686T1 (en) | 2002-04-15 |
| KR100434785B1 (en) | 2004-06-07 |
| DE19925676C1 (en) | 2000-08-10 |
| US6493979B2 (en) | 2002-12-17 |
| ES2172501T3 (en) | 2002-10-01 |
| EP1102959B1 (en) | 2002-04-03 |
| PT1102959E (en) | 2002-09-30 |
| DE50000131D1 (en) | 2002-05-08 |
| ZA200006754B (en) | 2001-08-29 |
| KR20010072177A (en) | 2001-07-31 |
| EP1102959A1 (en) | 2001-05-30 |
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